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LM2576S PDF预览

LM2576S

更新时间: 2024-01-31 01:21:47
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器开关
页数 文件大小 规格书
19页 441K
描述
1A & 3A Miniconverter Switching Regulators

LM2576S 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:TO-263,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:7 weeks风险等级:1.58
其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 1.23V TO 37V模拟集成电路 - 其他类型:SWITCHING REGULATOR
最大输入电压:40 V最小输入电压:4 V
标称输入电压:12 VJESD-30 代码:R-PSSO-G5
JESD-609代码:e3长度:10.287 mm
湿度敏感等级:1功能数量:1
端子数量:5最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:7.5 A
封装主体材料:PLASTIC/EPOXY封装代码:TO-263
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):245认证状态:Not Qualified
座面最大高度:4.59 mm表面贴装:YES
切换器配置:BUCK最大切换频率:63 kHz
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn) - annealed
端子形式:GULL WING端子节距:1.7 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:40
宽度:9.144 mmBase Number Matches:1

LM2576S 数据手册

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LM2575 & LM2576  
1A & 3A Miniconverter  
Switching Regulators  
POWER MANAGEMENT  
Description  
Features  
The LM2575/6 series switching regulators are monolithic  
integrated circuits designed for use in “buck” or “buck/  
boost” regulator applications requiring accurate output  
voltages over combined variations of line, load and  
temperature. This unique series greatly simplifies  
switching power supply design. The LM2575 has a  
maximum output current of 1A and the LM2576 is rated  
for 3A.  
u Pin for pin replacement for National’s LM2575/6  
series  
u DC-to-DC buck or buck/boost converter requiring  
only 4 support components  
u Fixed or adjustable voltages  
u Preset output voltages of 3.3V, 5V and 12V  
u Wide output voltage range, 1.23V to 35V  
u 82% typical efficiency @ 5V out  
u Wide input voltage range, 4V to 40V  
u Inhibit/enable control pin  
The LM2575/6 series miniconverters include a  
switching regulator and compensation network all within  
the same package. Just add a choke, catch diode and  
two capacitors to obtain an efficient DC-to-DC converter.  
The current limit and thermal shutdown features of the  
LM2575/6 series fully protect the device against  
overstress conditions.  
u Industrial temperature range  
u TO-220 and TO-263 packages  
Applications  
u Micro controller power supplies  
u Medical equipment  
u Industrial power supplies  
u Instrumentation power supplies  
The LM2575/6 series offers an alternative to popular 3  
terminal linear regulators by providing higher efficiency  
with reduced heatsink size. In many applications a heat  
sink will not be required.  
Typical Application Circuits  
LM2575 LM2576  
L1  
D1  
330µH  
3A  
100µH  
7A  
CIN  
68µF  
120µF  
COUT 330µF 1,000µF  
Revision 1, January 2001  
1
www.semtech.com  

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